Oil-well-valve raiser.



H. SARK.

OIL WELL VALVE RAISER.

APPLICATION IILEIJ JUNE zo 1910. 1,008

Patented Sept. 12 1911..

A N a E M\\\\\\\\\\\\ I e E HARRY SAB/K, OF BLUFFTON, INDIANA.

OIL-WELL-VALV'E BAISER.

Lenaeov.

To all whom it may concern:

Be it known that I, HARRY SARK, a citizen of the United States, residingat Bluffton, in the county of `Wells and State of Indiana, have inventedcertain new and useful Improvements in Oil-'llVell-Valve Itaisers, ofwhich the following is a specification.

rlhis invention relates to oil well valve raisers, more particularly, itbelongs to those devices with which the plunger or sucker of a deep wellpump is provided, for the purpose of raising the lower valve of the pumpwhen the plunger is withdrawn, in order to save the time and labor ofraising first the plunger and then lowering the rod again to catch andraise the lower valve. In such devices the usual play of the sucker rodup and down merely operates the lower valve in the ordinary manner. Itis only when the sucker rod is drawn upwardly for some considerabledistance that the lower valve is more than normally displaced.

The object of this invention is the production of a pump furnished witha lower valve and lower valve rod having parts of special constructionand arrangement, whereby it is believed that greater simplicity isreached, the construction of the parts made cheaper and can be morereadily repaired, and the operation calls for less power than in thosecont-rivances for the same purpose now in common use.

The construction and arrangement coinprising this invention areillustrated in the accompanying' drawings, of which- Figure l representsa vertical section of a well with this invention contained therein, theplunger or sucker being shown at the lowest point of its stroke. Fig. 2is a similar section showing the plunger partly withdrawn and the lowervalve being drawn out with it. Fig. 3 is a cross-section of the lowervalve. Fig. 4L is a cross-section of the lower valve holder on brokenline fr-x of Fig. l and it is also a plan view from the top of the lowervalve. 'Ihe scale ofdrawing in Figs. 3 and 4 is slightly increased.

rlhe same letter is employed to refer to the same part throughout thedrawings and description.

Considering the drawings, the letter A designates the usual well casing,and B the pump barrel or tube, at the lower end of which is anotherlength of pipe C, having at its upper end the annular shoulder c. Theplunger or sucker is marked D, and to the Specification of LettersPatent.

Application led .Tune 20, 1910.

Patented Sept. 12, 1911. Serial No. 567,822.

lower portion thereof, d, there is connected the lower valve rod E, bymeans of the key c. The additional or valve rod E passes downwardlythrough the lower valve holder F, and is guided by the head f thereof.The lower valve Gr is seated in the valve holder F as shown in Fig. l,and the rod E passed centrally through the valve Gr. The valve holderrests upon the annular shoulder c of the lowest joint or strainer pipeC. At its lower end, the rod E has a cylindrical endpiece H, and, it isbelieved to be now made clear that if the sucker D be withdrawn asillustrated in Fig. 2, the end-piece D will raise the holder and thevalve Gr also.

When the suckerY makes its usual strokes up and down, the position ofthe end-piece H is always at a point lowerusually much lower, than thebase of the lower valve holder F, which is not disturbed. The valveholder F is under ordinary circumstances of operation held down upon theshoulder c of the pipe C by its weight, which is made sufricient for thepurppse. Therefore, although the packing J on the interior of the lowervalve G, as best shown in Fig. 3, is held closely to rod E by the glandj, the valve G is raised only as high as the head f of the holder F, andis driven instantly to its seat as soon as the sucker D begins itsdownward stroke. The friction between the packing J and the rod E isnever sutcient to raise the holder F and the valve as well. Theadjustment of the packing is made with that end in view.

Having now described this invention and explained the mode of itsoperation, what I claim and desire to secure by Letters Patent of theUnited States is l. In an oil well valve raiser, the combination with apump barrel, of a lower valve holder movably fitting within said barreland having a central passage, a lower valve arranged in the said holderand having a central passage, a piston within the barrel, a rod attachedto the piston and extending downwardly through the said lower valve andsaid holder, and an end piece secured to the end of said rod below saidholder, the said end-piece being larger in diameter than the passagethrough said holder.

2. In an oil well valve raiser, the combination with a pump barrelhaving an internal annular shoulder, of a lower valve holder movablyfitting within said barrel and having a central passage, a lower valvearranged in the said holder and havingaeentral passage, the said holderbeing constructed to rest upon said annular shoulder' of the barrel, apiston wit-hin the barrel, a o rod attached to the piston and extendingdownwardly through the said lower valve andv said holder, and an endpiece secured to the end of said rod below said holder, the

Ysaid end-piece being larger in diameter than the passage through theholder.

' lnv testimony whereof I aliix my signature in presence of twowitnesses.

HARRY SARK. fitnesses FRED B. DETTER, ROY DE HAVEN.

Copies of this-intent may be obtained for five cents each, by addressingthe Commissioner of Patents; Washington, D. C.

